Hi,
There is FCurve node in ICE that like ramp node in vop. But I find Ramp node have only linear and ease-in-out curve mode. I want make a fast-in slow-out curve in VOP Net. How could I do?
Thanks!
FCurve node In ICE
5923 9 1- jerry7
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- pbowmar
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pbowmar
You can still old-school it by using an animation channel, keyframes at 1 and 100 (and any inbetween) then use the ‘chf()’ function to look up into that curve. That's what all use grey-hairs used to use and still do when the Ramp parm lacks the interpolations you want.
Wow, awesome tip!
I'm o.d.d.
- jason_iversen
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Or use a Ramp spare parameter and chramp(), of course!
Jason Iversen, Technology Supervisor & FX Pipeline/R+D Lead @ Weta FX
also, http://www.odforce.net [www.odforce.net]
also, http://www.odforce.net [www.odforce.net]
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- jason_iversen
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Helps if I read the question, doesn't it? ops:
Jason Iversen, Technology Supervisor & FX Pipeline/R+D Lead @ Weta FX
also, http://www.odforce.net [www.odforce.net]
also, http://www.odforce.net [www.odforce.net]
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pbowmar
You can still old-school it by using an animation channel, keyframes at 1 and 100 (and any inbetween) then use the ‘chf()’ function to look up into that curve. That's what all use grey-hairs used to use and still do when the Ramp parm lacks the interpolations you want.
hi pbowmar ,
chf() may not be driven by different point attribute in Vop network. but ramp can do it.
In SI, FCurve is very useful for tweak particle per-point attribute.
- pbowmar
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Ah I see yes. In fact, you can use chf() with attributes, but in a clunky way: You make a local variable (which VOPs will create for you automatically in the Create Attribute VOP) then use that in the chf() function.
I agree that Ramp (particularly the Float Ramp) needs some love to get Beziers and other interpolations in there.
We use ramps extensively in Houdini too so I feel your pain.
Cheers,
Peter B
I agree that Ramp (particularly the Float Ramp) needs some love to get Beziers and other interpolations in there.
We use ramps extensively in Houdini too so I feel your pain.
Cheers,
Peter B
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